Reading through the, What wallets to use thread the majority of people said they thought Blockchain were a good wallet to use.
If I use Blockchain can I buy bitcoins through them and do they have a standard amount you have to buy.
I would just use the wallet to pay for a few things monthly and would only be looking to buy the equivalent of £30 worth of bitcoins a month
can I do this with Blockchain

I'm very new to Bitcoin of course I'd heard of it but never before thought to use them.
Now though I'd like to pay  for 2 or 3 things I purchase monthly online with Bitcoin so started searching
for info. When I started a couple of days ago Green Address and Mycelium were names that popped up
frequently but to my surprise Mycelium has only been mentioned a few times and Green Address was mentioned
once in the whole 12 pages and that was on page 10.
These were the two I was thinking of using until I read this thread, I'm not going to be storing coins in a wallet
like I said it's purely to pay for online purchases 3 times a month so thought one of these wallets would be fine.
I did install Armory and the Bitcoin base but they took up 169g of my hardrive and I thought that was over kill
for want I'm going to use a wallet for so I uninstalled and I will settle for a wallet on my phone
but now I'm back to square one in choices 

Hello, New to Bitcoin and what I would like to do is simply pay for a few monthly bills online, Only about £30 a month in total and was thinking of using
the Green address app for my phone. Would this be a safe way to go